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Finding the Fourth Proportional to 171,528.48, 256,849.52 and 118,384.40

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Solution

The fourth proportional to 171,528.48, 256,849.52 and 118,384.40 is: 177,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,528.48 : 256,849.52 = 118,384.40 : x
  2. Step 2: Convert to fraction form
    171,528.48/256,849.52 = 118,384.40/x
  3. Step 3: Cross multiply
    171,528.48x = 256,849.52 × 118,384.40
  4. Step 4: Simplify right side
    171,528.48x = 30,406,976,315.49
  5. Step 5: Solve for x
    x = 30,406,976,315.49/171,528.48
  6. Step 6: Final answer
    x = 177,270.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.